add empty message validation

config/example.json

@@ -105,6 +105,10 @@
                             [
                                 "\u001b[31mReached message length limit!\u001b[0m"
                             ],
+                            "empty":
+                            [
+                                "\u001b[31mMessage could not be empty!\u001b[0m"
+                            ],
                             "internal":
                             [
                                 "\u001b[31mSomething went wrong, please make your feedback!\u001b[0m",

src/Server/Ratchet.php

@@ -183,65 +183,80 @@ class Ratchet implements MessageComponentInterface
             // Check message commit by dot
             if ($request == '.')
             {
-                // Save massage to KevaCoin blockchain
-                if ($txid = $this->_kevacoin->kevaPut($this->_config->kevacoin->wallet->namespace, time(), $connection->message))
+                // Check message not empty
+                if (empty(trim($connection->message)))
                 {
-                    // Return success response
                     $connection->send(
-                        str_replace(
-                            [
-                                '{name}',
-                                '{txid}'
-                            ],
-                            [
-                                $this->_config->kevacoin->wallet->namespace,
-                                $txid
-                            ],
-                            implode(
-                                PHP_EOL,
-                                $config->response->submit->success
-                            ) . PHP_EOL
-                        )
+                        implode(
+                            PHP_EOL,
+                            $config->response->submit->failure->empty
+                        ) . PHP_EOL
                     );
+                }
 
-                    // Print transaction debug info on enabled
-                    if ($this->_config->kevacoin->event->put->debug->enabled)
+                // Max length already checked on input, begin message save
+                else
+                {
+                    // Save massage to KevaCoin blockchain
+                    if ($txid = $this->_kevacoin->kevaPut($this->_config->kevacoin->wallet->namespace, time(), $connection->message))
                     {
-                        print(
-                            str_ireplace(
+                        // Return success response
+                        $connection->send(
+                            str_replace(
                                 [
-                                    '{time}',
-                                    '{host}',
-                                    '{crid}',
                                     '{name}',
-                                    '{txid}',
-                                    '{keva}'
+                                    '{txid}'
                                 ],
                                 [
-                                    (string) date('c'),
-                                    (string) $connection->remoteAddress,
-                                    (string) $connection->resourceId,
-                                    (string) $this->_config->kevacoin->wallet->namespace,
-                                    (string) $txid,
-                                    (string) $this->_kevacoin->getBalance(
-                                        $this->_config->kevacoin->wallet->account
-                                    )
+                                    $this->_config->kevacoin->wallet->namespace,
+                                    $txid
                                 ],
-                                $this->_config->kevacoin->event->put->debug->template
-                            ) . PHP_EOL
+                                implode(
+                                    PHP_EOL,
+                                    $config->response->submit->success
+                                ) . PHP_EOL
+                            )
                         );
+
+                        // Print transaction debug info on enabled
+                        if ($this->_config->kevacoin->event->put->debug->enabled)
+                        {
+                            print(
+                                str_ireplace(
+                                    [
+                                        '{time}',
+                                        '{host}',
+                                        '{crid}',
+                                        '{name}',
+                                        '{txid}',
+                                        '{keva}'
+                                    ],
+                                    [
+                                        (string) date('c'),
+                                        (string) $connection->remoteAddress,
+                                        (string) $connection->resourceId,
+                                        (string) $this->_config->kevacoin->wallet->namespace,
+                                        (string) $txid,
+                                        (string) $this->_kevacoin->getBalance(
+                                            $this->_config->kevacoin->wallet->account
+                                        )
+                                    ],
+                                    $this->_config->kevacoin->event->put->debug->template
+                                ) . PHP_EOL
+                            );
+                        }
                     }
-                }
 
-                // Could not receive transaction, something went wrong
-                else
-                {
-                    $connection->send(
-                        implode(
-                            PHP_EOL,
-                            $config->response->submit->failure->internal
-                        ) . PHP_EOL
-                    );
+                    // Could not receive transaction, something went wrong
+                    else
+                    {
+                        $connection->send(
+                            implode(
+                                PHP_EOL,
+                                $config->response->submit->failure->internal
+                            ) . PHP_EOL
+                        );
+                    }
                 }
 
                 // Close connection at this point